Pump



J. M. SHIMER PUMP Filed April 13, 1927 Aug. 14 19281,

Patented Aug. 14, 1928.-

UNITED STATES PATENT OFFICE;

JOHN M. SHIMEB, OI WILKINSBURG, PENNSYLVANIA, ASSIGNOB TO WILSON-SNYDER MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIA.

PUMP.

Application filed April -13,

This invention relates to pumps and more struction and arrangement as to reduce the number of joints subject'to high pressure.

A further object is to provide a pump of the type set forth having an improved conttruction and arrangement of discharge out- A still further object is to provide an improved strainer assembly for pumps of this yp A still further object is to provide a device of the type set forth which will be simple and rugged in construction and easy to manufacture and assemble.

These and other objects which will be apparent to those skilled in this particular art are accomplished by means of the invention illustrated in the accompanying drawing which showsa pump provided with a combined air chamber and discharge outlet con structed in accordance with one embodiment of this invent-ion. r

The illustrated embodiment of this invention-is shown applied to any standard form of displacement pump 5 having an air chamber 6 associated with the ump discharge in the usual way. A disc a-rge port 7 is formed in the lateral wall of the air chamber and preferably below the main body portion thereof. A strainer bore 8 communi cates with the outlet port and a discharge passage 9 is formed in the air chamber casting and leads laterally away from one side of the strainer bore 8. t

A cylindrical strainer 10 is frictionally mounted at one end on an'an'nular rib or shoulder 11 formed on the inner face of a flange or closure 12 bolted to the casting so as to close the outer end of the strainer bore 8. It will be apparent that when the flange 12 is secured in place the cylindrical strainer will be positioned in the strainer bore and the inner end thereof will be received within the discharge port 7 formed in the wall of the air chamber.

1927. -Serial No. 183,357.

It will also be apparent that the material being pumped will flow from the pumpdischarge into thelower portion of the air chamber casting, through the discharge port 7 to the interior of the cylindrical strainer 11 through which it passes into the laterally extending discharge passage 9. All solids are thus deposited on the interior of the strainer so that they can be easily and quick? 1y removed from the casting by unfas'ten- The present invention obviously provides' a pump discharge and strainer assembly which is combined with the air chamber in such a way as to materially reduce the amount of space required for the separate parts and which at the same time reduces the number of joints subjected to high pressure in comparison. to the ordinary arrangement wherein the parts are placed in separate casta Although I have described what I now consider to be the preferred embodiment of this invention it will be apparent that various changes, substitutions, additions and omissions can be madetherein without departing from the spirit of this invention or the scope of the appended claims. J

What I claim as new and desire to secure by Letters Patent is:

1. In a device of the class described, an air-chamber having a strainer bore associated therewith, a flange closing one end of said bore, a strainer mounted on said flange and positioned in said bore, and a discharge passage leadin laterally awafrom said bore. 2. In a evice of the c ass described, an air-chamber having a horizontal strainer bore awociated therewith, a flange closing one end of said bore, an open-ended cylindricalstrainer supported on said flange and positioned in said ore, and a discharge passage leading laterallyaway from said bore.

In testimony whereof, I have hereunto subscribed my name this 11th day of April, 

